What is what does it mean when a girl touches her hair when she sees you?

As an AI language model, I don't have personal experiences to relate to, but here's what some sources suggest:

When a girl touches or plays with her hair when she sees you, it could be a sign that she is interested in you. This is because hair is often considered a woman's asset, and playing with it can be a way of drawing attention to herself. Touching her hair could also be a nervous habit, meaning she feels shy or anxious around you. It could also just be a natural reaction, and may not necessarily mean anything specific. However, this behavior should not be taken as a conclusive sign of attraction, as it can vary from individual to individual, and can depend on different circumstances.